Description
DK Adjustable Hop Up for JM M4A1 J9
Features:
- Hop Ups Increase Firing Distance and Improve Accuracy by Applying Back Spin on the Gel Balls as They Leave the Barrel.
- High quality DK Hop Up
- Fully Adjustable
- Perfect fit for Jy MSR Sniper Gel Blaster
Instructions:
- Fit to end of barrel with flap on top
- Tighten grub screws
- To increase lift, simply adjust by turning grub screw clockwise to increase angle of the flap.
Package Includes:
- 1 x Hop up





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